Phosphonic
a. 膦的, 膦酸的
🗣️ 情景例句
He was ill at ease with people whom he didn't understand.
他和不熟悉的人在一起感到不自在。
How much do you want to change?
您想兑换多少？
There is some difference between the twins.
这对双胞胎有点儿不一样。